Capacitance of a perforated plate

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asandip
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Capacitance of a perforated plate

Post by asandip »

Hello,

Had a couple of questions regarding this tutorial -

1. Is the analytical (or true value) of the plate capacitance 221.36 fF?
2. What is the value of A (area of the capacitor plate)?

Relative permittivity = 1 F/m
Vaccuum permittivity = 8.854e-12 F/m
d (separation between the plates) =1.0 mm

Also, are there other tests similar to this --electrostatics/capacitance determination -- in the fem/tests folder? Thanks for any information you can provide.

Ilaj
raback
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Re: Capacitance of a perforated plate

Post by raback »

Hi

1) analytic approximation assuming plate capacitor
2) (5^2-1.5^2)*1e-12

For tests you could have a look at "CapacitanceMatrix" and "elstat_infty".

-Peter
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